Basically, yes - one is out of date; either because two animals were described separately but later turned out to be the same thing, or if the species has been moved to a different genus after new data was found. In this case, you've picked a contentious one, as IUCN has recently switched back to Choeropsis after years of favouring Hexaprotodon. I'm not quite sure what the story is there.
In all fairness, I do use Wikipedia as a starting point (it's always been reliable for me). That says 'Choeropsis or Hexaprotodon,' I always try to use the one listed first.
In all fairness, I do use Wikipedia as a starting point (it's always been reliable for me). That says 'Choeropsis or Hexaprotodon,' I always try to use the one listed first.
